Home / 5,280.83-7,918.31-2,163.02

Finding the Fourth Proportional to 5,280.83, 7,918.31 and 2,163.02

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Solution

The fourth proportional to 5,280.83, 7,918.31 and 2,163.02 is: 3,243.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.83 : 7,918.31 = 2,163.02 : x
  2. Step 2: Convert to fraction form
    5,280.83/7,918.31 = 2,163.02/x
  3. Step 3: Cross multiply
    5,280.83x = 7,918.31 × 2,163.02
  4. Step 4: Simplify right side
    5,280.83x = 17,127,462.90
  5. Step 5: Solve for x
    x = 17,127,462.90/5,280.83
  6. Step 6: Final answer
    x = 3,243.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.